From 9c211f5139917fcaf7ee9e25017c5638f56ac820 Mon Sep 17 00:00:00 2001
From: randomuser <randomuser@tilde.club>
Date: Tue, 20 Sep 2022 16:49:14 -0500
Subject: [PATCH] remove buffer overflow vulnerability

---
 bspc.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/bspc.c b/bspc.c
index c7826cb..061619b 100644
--- a/bspc.c
+++ b/bspc.c
@@ -319,8 +319,7 @@ int bspwm_update(struct module *module) {
 			break;
 		}
 		if(isdigit(module->buffer[i]) && *current == module->buffer[i]) {
-			/* XXX: susceptible to buffer overflow */
-			if(i == MODULE_BUFFER_LEN) module->buffer[i + 1] = '<';
+			if(i <= MODULE_BUFFER_LEN - 2) module->buffer[i + 1] = '<';
 			*current = '\0';
 		}
 		if(module->buffer[i] == '\n')